code: def test_cse_10401() -> None:
      df = pl.LazyFrame({"clicks": [1.0, float("nan"), None]})
  
      q = df.with_columns(pl.all().fill_null(0).fill_nan(0))
  
      assert (
          r"""col("clicks").fill_null([0]).alias("__POLARS_CSER"""
          in q.explain()
      )
  
      expected = pl.DataFrame({"clicks": [1.0, 0.0, 0.0]})
      assert_frame_equal(q.collect(comm_subexpr_elim=True), expected)
  
imports: import re
  from datetime import date, datetime
  from tempfile import NamedTemporaryFile
  from typing import Any
  import numpy
  import pytest
  import polars
  from polars.testing import assert_frame_equal
label_desc: Use image node_id 11 for calling a global function with example usage: test_cse_10401() without return types